Mobile Radio Unit Tactile Feedback for Phantom Vibrations
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Users of mobile radio devices often experience phantom vibrations due to inadequate signaling of device states, particularly the idle or ready state, leading to unpleasant and disturbing perceptual illusions, especially when expecting important calls.
Innovation Solution
A method and device that utilize tactile actuators to simulate human vital functions like breathing and heartbeat to signal different operating states, including an idle or ready state, ensuring users are informed through periodic and subtle tactile stimuli, even when the device is otherwise inactive, and alerting them to battery charge levels and missed events.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If visual or acoustic signals are used to signal operating states, then users can perceive device states, but users do not perceive visual signals when carrying the device, and acoustic signals are often not perceived or undesirable in certain environments
Solution Approach 1:
The patent replaces visual and acoustic signaling systems with a tactile feedback system. Actuators generate vibrations that propagate through the device housing to the user's hand, providing operating state information through touch rather than sight or sound. This substitution resolves the contradiction by enabling perception in environments where visual and acoustic channels are ineffective.
Solution Approach 2:
The patent introduces tactile feedback as an intermediary channel between the device and user. The actuators serve as mediators that convert internal device states into external tactile signals. This intermediary approach allows information transmission without requiring direct visual or acoustic contact, solving the perception problem in pockets, bags, and quiet environments.
2Reliability
If only special or critical operating states are signaled by vibrations, then vibration alerts are used for incoming calls and low battery, but normal idle states are not signaled, leading to phantom vibrations and user deception
Solution Approach 1:
The patent implements continuous tactile feedback to signal the idle state indefinitely, rather than providing intermittent alerts. The actuators generate sustained low-amplitude vibrations that continuously indicate the device is ready and inactive, eliminating the information gap between critical events and normal operation. This continuous signaling prevents phantom vibrations by providing constant feedback about the actual device state.
Solution Approach 2:
The patent uses periodic vibration patterns to differentiate between various operating states. Different vibration frequencies and patterns indicate different states (incoming call, low battery, idle, etc.). The periodic action creates a distinguishable tactile signature for each state, allowing users to accurately perceive device status without visual or acoustic cues.
3Ease of operation
If tactile stimuli are used to signal operating states, then users can perceive device states in pockets and bags, but users may experience phantom vibrations and perceptual illusions when expecting important calls
Solution Approach 1:
The patent implements a feedback system where the device continuously monitors its actual state and provides corresponding tactile feedback. The control unit compares expected states with actual states and adjusts vibration patterns accordingly. This feedback mechanism ensures that tactile signals accurately reflect real device conditions, preventing phantom vibrations by eliminating discrepancies between perceived and actual states.
Solution Approach 2:
The patent dynamically adjusts vibration characteristics based on the current operating state and user context. The control unit modifies vibration amplitude, frequency, and pattern in real-time to match the actual device state. This dynamic adaptation ensures that tactile feedback remains accurate and meaningful, preventing phantom vibrations by continuously aligning signal characteristics with actual device conditions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Prevents phantom vibrations by continuously and unobtrusively informing users of their device's state through tactile feedback, reducing user anxiety and improving perception of actual events, while maintaining usability in various environments.
Implementation Method 1
The mobile radio device (100) is designed in such a way that at least one actuator (1, 2) is active in an operating state defined as the idle state
Data Source
Figure 1
Figure 2
AI summary
The method involves signalizing different operating conditions to a user, where the conditions are represented by physical parameters such as measuring signal, working in or at a mobile device. The operating conditions are detected by a central processing unit of the device by an evaluation of the parameters. One operating condition defined as a resting condition and another operating condition are signalized in form of a unique or repeated tactile attraction perceptible by the user by actuators (1, 2), which is controlled by the processing unit based on the detected operating conditions. An independent claim is also included for a mobile device comprising a central processing unit.